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    <h2 id="jiaocai">教材</h2>
    <div>计算机组成原理</div>
    <dl>
        <dd><dl>
            <dt>计算机组成原理</dt>
            <dd>教材</dd>
            <dd><img src="imgs/jc.jpg" style="width: 100px; height: 150px;" alt=""></dd>
            <dd>参考书</dd>
            <dd>
                <img src="imgs/2.jpg" alt="" width="100px">
                <img src="imgs/3.jpg" alt="" width="150px">
            </dd>
        </dl></dd>
        <dt>Java语言课程设计</dt>
        <dd><img src="imgs/4.jpg" alt="" width="120px"></dd>
        <dt>数据库原理与应用</dt>
        <dd><img src="imgs/5.jpg" alt="" width="120px"> </dd>
        <dt>web技术基础实验</dt>
        <dd><dl>
            <dt>教材</dt>
            <dt><img src="imgs/6.jpeg" alt="" width="120px"></dt>
            <dt>参考书</dt>
            <dt><img src="imgs/7.png" alt="" width="120px"></dt>
        </dl></dd>
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